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Radium

RA-18-0016-A11

Radium Radiator Cap

WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov

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Radium high performance radiator caps are engineered to improve cooling efficiency. The radiator cap is an essential part of an upgraded cooling system and will help to safely maximize engine performance by controlling the coolant boiling point. Each OEM replacement radiator cap is manufactured from stamped stainless steel for durability and feature silicone sealing elements that are superior to natural rubber gaskets. 

Available in 3 pressure ratings: 1.1Bar (16.0psi), 1.3Bar (18.9psi), and 1.5Bar (21.8psi). A higher radiator coolant pressure effectively raises the boiling temperature of the coolant, providing extra safety margin and preventing air pocket cavitation at the water pump

Also available in 2 common styles (Type-A and Type-B). Radium radiator caps are designed for mini size (32mm ID) radiator necks only.

Type-A Vehicle Fitment

  • 90-93 Acura Integra (DA)
  • 91-05 Acura NSX (NA1/NA2)
  • 90-93 Honda Accord
  • 18+ Accord 2.0T (CV2)
  • 88-91 Civic/CRX (EF)
  • 16+ Civic (FK7/FK8)
  • 92-01 Honda Prelude (BB1/BB4/BB6)
  • 03-08 Infiniti G35
  • 08-up Infiniti G37
  • 14+ Infiniti Q50
  • 14+ Infiniti Q60
  • 92-00 Lexus SC400
  • 90-95 Mazda Cosmo
  • 90-05 Mazda Miata
  • 06-up Mazda MX-5
  • 86-02 Mazda RX-7
  • 04-11 Mazda RX-8
  • 91-99 Mitsubishi 3000GT
  • 90-99 Mitsubishi Eclipse
  • 02+ Mitsubishi Lancer/EVO
  • 89-98 Nissan 180SX
  • 89-98 Nissan 200SX
  • 89-98 Nissan 240SX
  • 90-96 Nissan 300ZX
  • 03-09 Nissan 350Z
  • 09+ Nissan 370Z
  • 88-94 Nissan Cefiro
  • 05+ Nissan Frontier
  • 09+ Nissan GT-R
  • 89-02 Nissan Laurel
  • 89-02 Nissan Silvia
  • 89-02 Nissan Skyline
  • 05-06 Saab 9-2X
  • 93+ Subaru Impreza
  • 90+ Subaru Legacy
  • 15+ Subaru WRX STi
  • 15+ Subaru WRX
  • 82-95 Toyota Celica
  • 85-95 Toyota MR2
  • 86-92 Toyota Supra 
  • Radium Coolant Expansion Tank 

Type-B Vehicle Fitment

  • 94-01 Acura Integra
  • 02-06 Acura RSX
  • 04-08 Acura TSX
  • 94-97 Honda Accord
  • 18+ Accord 1.5T (CV1)
  • 92-15 Honda Civic
  • 93-97 Honda Del Sol 
  • 03-11 Honda Element
  • 07+ Honda Fit 
  • 00-09 Honda S2000
  • 08+ Lexus LX570
  • 98-05 Lexus IS300
  • 13+ Scion FR-S
  • 13+ Subaru BRZ
  • 17+  Toyota 86
  • 08+ Toyota Land Cruiser
  • 08+ Toyota Sequoia
  • 93-02 Toyota Supra
  • 07+ Toyota Tundra